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authorJeff Layton <jlayton@redhat.com>2011-07-26 13:33:16 -0400
committerAl Viro <viro@zeniv.linux.org.uk>2011-07-26 13:41:14 -0400
commitc46c887744b330795eba55fdb96343c36d481765 (patch)
tree3e4608981b87d8b5d2b23827988312d7c35778b2 /fs/xfs/xfs_inode.c
parent41c96486f238e6a545f52215f95fe69748abf603 (diff)
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vfs: document locking requirements for d_move, __d_move and d_materialise_unique
Adding a comment to d_materialise_unique per Al's request... d_move and __d_move have some pretty substantial locking requirements, but they are not clearly documented. Add some comments spelling them out. Also, document the requirement for the i_mutex of the parent in d_materialise_unique. Cc: Al Viro <viro@ZenIV.linux.org.uk> Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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